Mobius - X8 Knee Braces (Pair)The Mobius X8 knee brace evolved from 7 years of development, prototypes, and testing. The design of the Mobius brace is intended to prevent three typical knee injuries: lateral bending, lateral rotation and hyperextension. SOLD AS A PAIR. We have been using these knee braces at TripleClamp Moto for years. They are comfortable and frankly have saved our knees many times from impact and most importantly hyperextension. We never ride without them. The